HeaderTemplate Binding

[Peter]

Hello,

I want to bind some property from my ViewModel to a RadWindow.HeaderTemplate. My approach seems not to work. Can you help me with this?


 

<telerik:RadWindow.HeaderTemplate>

    <DataTemplate>

        <StackPanel Orientation="Horizontal">

            <Image Width="18" Source="Resources/ICO/CANsymEdit.ico" Stretch="Uniform" />

            <!--<ContentPresenter Content="{Binding}" Margin="5,0" />-->

            <TextBlock Text="{Binding DataContext.ActiveDocument, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}}" VerticalAlignment="Center" Margin="5,0" />

        </StackPanel>

    </DataTemplate>

</telerik:RadWindow.HeaderTemplate>

 

regards,

Tobias

[Vladimir Stoyanov]

Hello Tobias,

Thank you for the shared code snippet.

It seems that you are using a RelativeSource Binding pointing to an AncestorType - Window. Note, that if you want to target the RadWindow, you should use "AncestorType={x:Type telerik:RadWindow}".

That said, if "ActiveDocument" is a property of the object that is the DataContext of the RadWindow, you can use the following approach:

<telerik:RadWindow Header="{Binding ActiveDocument}">
    <telerik:RadWindow.HeaderTemplate>
        <DataTemplate>
            <StackPanel Orientation="Horizontal">
                <TextBlock Text="{Binding }" VerticalAlignment="Center" Margin="5,0" />
            </StackPanel>
        </DataTemplate>
    </telerik:RadWindow.HeaderTemplate>
 
</telerik:RadWindow>

Note, that I am binding the Header property of the RadWindow, which becomes the DataContext inside the HeaderTemplate. That is a common pattern for all X/XTemplate properties in WPF. 

I hope you find this information helpful.

Regards,
Vladimir Stoyanov
Progress Telerik

[Peter]

that works for me, thanks a lot!